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ScrollDC doesn't need to be in the graphics driver.

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This commit is contained in:
Alexandre Julliard 2004-01-12 21:15:16 +00:00
parent 8e9267e267
commit a51bb8151d
5 changed files with 81 additions and 101 deletions
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1
dlls/user/user_main.c
View file

@ -111,7 +111,6 @@ static BOOL load_driver(void)
GET_USER_FUNC(ForceWindowRaise);
GET_USER_FUNC(MsgWaitForMultipleObjectsEx);
GET_USER_FUNC(ReleaseDC);
GET_USER_FUNC(ScrollDC);
GET_USER_FUNC(ScrollWindowEx);
GET_USER_FUNC(SetFocus);
GET_USER_FUNC(SetParent);

90
dlls/x11drv/scroll.c
View file

@ -37,94 +37,6 @@
WINE_DEFAULT_DEBUG_CHANNEL(scroll);
/*************************************************************************
* ScrollDC (X11DRV.@)
*
* dx, dy, lprcScroll and lprcClip are all in logical coordinates (msdn is wrong)
* hrgnUpdate is returned in device coordinates with rcUpdate in logical coordinates.
*
*/
BOOL X11DRV_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *lprcScroll,
const RECT *lprcClip, HRGN hrgnUpdate, LPRECT lprcUpdate )
{
RECT rSrc, rClipped_src, rClip, rDst, offset;
TRACE( "%p %d,%d hrgnUpdate=%p lprcUpdate = %p\n", hdc, dx, dy, hrgnUpdate, lprcUpdate );
if (lprcClip) TRACE( "lprcClip = %s\n", wine_dbgstr_rect(lprcClip));
if (lprcScroll) TRACE( "lprcScroll = %s\n", wine_dbgstr_rect(lprcScroll));
/* compute device clipping region (in device coordinates) */
if (lprcScroll) rSrc = *lprcScroll;
else GetClipBox( hdc, &rSrc );
LPtoDP(hdc, (LPPOINT)&rSrc, 2);
if (lprcClip) rClip = *lprcClip;
else GetClipBox( hdc, &rClip );
LPtoDP(hdc, (LPPOINT)&rClip, 2);
IntersectRect( &rClipped_src, &rSrc, &rClip );
TRACE("rSrc %s rClip %s clipped rSrc %s\n", wine_dbgstr_rect(&rSrc),
wine_dbgstr_rect(&rClip), wine_dbgstr_rect(&rClipped_src));
rDst = rClipped_src;
SetRect(&offset, 0, 0, dx, dy);
LPtoDP(hdc, (LPPOINT)&offset, 2);
OffsetRect( &rDst, offset.right - offset.left, offset.bottom - offset.top );
TRACE("rDst before clipping %s\n", wine_dbgstr_rect(&rDst));
IntersectRect( &rDst, &rDst, &rClip );
TRACE("rDst after clipping %s\n", wine_dbgstr_rect(&rDst));
if (!IsRectEmpty(&rDst))
{
/* copy bits */
RECT rDst_lp = rDst, rSrc_lp = rDst;
OffsetRect( &rSrc_lp, offset.left - offset.right, offset.top - offset.bottom );
DPtoLP(hdc, (LPPOINT)&rDst_lp, 2);
DPtoLP(hdc, (LPPOINT)&rSrc_lp, 2);
if (!BitBlt( hdc, rDst_lp.left, rDst_lp.top,
rDst_lp.right - rDst_lp.left, rDst_lp.bottom - rDst_lp.top,
hdc, rSrc_lp.left, rSrc_lp.top, SRCCOPY))
return FALSE;
}
/* compute update areas. This is the clipped source or'ed with the unclipped source translated minus the
clipped src translated (rDst) all clipped to rClip */
if (hrgnUpdate || lprcUpdate)
{
HRGN hrgn = hrgnUpdate, hrgn2;
if (hrgn) SetRectRgn( hrgn, rClipped_src.left, rClipped_src.top, rClipped_src.right, rClipped_src.bottom );
else hrgn = CreateRectRgn( rClipped_src.left, rClipped_src.top, rClipped_src.right, rClipped_src.bottom );
hrgn2 = CreateRectRgnIndirect( &rSrc );
OffsetRgn(hrgn2, offset.right - offset.left, offset.bottom - offset.top );
CombineRgn(hrgn, hrgn, hrgn2, RGN_OR);
SetRectRgn( hrgn2, rDst.left, rDst.top, rDst.right, rDst.bottom );
CombineRgn( hrgn, hrgn, hrgn2, RGN_DIFF );
SetRectRgn( hrgn2, rClip.left, rClip.top, rClip.right, rClip.bottom );
CombineRgn( hrgn, hrgn, hrgn2, RGN_AND );
if( lprcUpdate )
{
GetRgnBox( hrgn, lprcUpdate );
/* Put the lprcUpdate in logical coordinate */
DPtoLP( hdc, (LPPOINT)lprcUpdate, 2 );
TRACE("returning lprcUpdate %s\n", wine_dbgstr_rect(lprcUpdate));
}
if (!hrgnUpdate) DeleteObject( hrgn );
DeleteObject( hrgn2 );
}
return TRUE;
}
/*************************************************************************
* ScrollWindowEx (X11DRV.@)
*
@ -165,7 +77,7 @@ INT X11DRV_ScrollWindowEx( HWND hwnd, INT dx, INT dy,
{
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
X11DRV_StartGraphicsExposures( hDC );
X11DRV_ScrollDC( hDC, dx, dy, &rc, &cliprc, hrgnUpdate, rcUpdate );
ScrollDC( hDC, dx, dy, &rc, &cliprc, hrgnUpdate, rcUpdate );
X11DRV_EndGraphicsExposures( hDC, hrgn );
ReleaseDC( hwnd, hDC );
if (bUpdate) CombineRgn( hrgnUpdate, hrgnUpdate, hrgn, RGN_OR );

1
dlls/x11drv/x11drv.spec
View file

@ -98,7 +98,6 @@
@ cdecl RegisterClipboardFormat(str) X11DRV_RegisterClipboardFormat
@ cdecl ReleaseDC(long long) X11DRV_ReleaseDC
@ cdecl ResetSelectionOwner(long long) X11DRV_ResetSelectionOwner
@ cdecl ScrollDC(long long long ptr ptr long ptr) X11DRV_ScrollDC
@ cdecl ScrollWindowEx(long long long ptr ptr long ptr long) X11DRV_ScrollWindowEx
@ cdecl SetClipboardData(long long long) X11DRV_SetClipboardData
@ cdecl SetFocus(long) X11DRV_SetFocus

1
include/user.h
View file

@ -113,7 +113,6 @@ typedef struct tagUSER_DRIVER {
void (*pForceWindowRaise)(HWND);
DWORD (*pMsgWaitForMultipleObjectsEx)(DWORD,const HANDLE*,DWORD,DWORD,DWORD);
void (*pReleaseDC)(HWND,HDC);
BOOL (*pScrollDC)(HDC,INT,INT,const RECT*,const RECT*,HRGN,LPRECT);
INT (*pScrollWindowEx)(HWND,INT,INT,const RECT*,const RECT*,HRGN,LPRECT,UINT);
void (*pSetFocus)(HWND);
HWND (*pSetParent)(HWND,HWND);

89
windows/scroll.c
View file

@ -77,17 +77,88 @@ BOOL WINAPI ScrollWindow( HWND hwnd, INT dx, INT dy,
/*************************************************************************
* ScrollDC (USER32.@)
*
* Only the hrgnUpdate is return in device coordinate.
* rcUpdate must be returned in logical coordinate to comply with win API.
*
* dx, dy, lprcScroll and lprcClip are all in logical coordinates (msdn is wrong)
* hrgnUpdate is returned in device coordinates with rcUpdate in logical coordinates.
*/
BOOL WINAPI ScrollDC( HDC hdc, INT dx, INT dy, const RECT *rc,
const RECT *prLClip, HRGN hrgnUpdate,
LPRECT rcUpdate )
BOOL WINAPI ScrollDC( HDC hdc, INT dx, INT dy, const RECT *lprcScroll,
const RECT *lprcClip, HRGN hrgnUpdate, LPRECT lprcUpdate )
{
if (USER_Driver.pScrollDC)
return USER_Driver.pScrollDC( hdc, dx, dy, rc, prLClip, hrgnUpdate, rcUpdate );
return FALSE;
RECT rSrc, rClipped_src, rClip, rDst, offset;
TRACE( "%p %d,%d hrgnUpdate=%p lprcUpdate = %p\n", hdc, dx, dy, hrgnUpdate, lprcUpdate );
if (lprcClip) TRACE( "lprcClip = %s\n", wine_dbgstr_rect(lprcClip));
if (lprcScroll) TRACE( "lprcScroll = %s\n", wine_dbgstr_rect(lprcScroll));
/* compute device clipping region (in device coordinates) */
if (lprcScroll) rSrc = *lprcScroll;
else GetClipBox( hdc, &rSrc );
LPtoDP(hdc, (LPPOINT)&rSrc, 2);
if (lprcClip) rClip = *lprcClip;
else GetClipBox( hdc, &rClip );
LPtoDP(hdc, (LPPOINT)&rClip, 2);
IntersectRect( &rClipped_src, &rSrc, &rClip );
TRACE("rSrc %s rClip %s clipped rSrc %s\n", wine_dbgstr_rect(&rSrc),
wine_dbgstr_rect(&rClip), wine_dbgstr_rect(&rClipped_src));
rDst = rClipped_src;
SetRect(&offset, 0, 0, dx, dy);
LPtoDP(hdc, (LPPOINT)&offset, 2);
OffsetRect( &rDst, offset.right - offset.left, offset.bottom - offset.top );
TRACE("rDst before clipping %s\n", wine_dbgstr_rect(&rDst));
IntersectRect( &rDst, &rDst, &rClip );
TRACE("rDst after clipping %s\n", wine_dbgstr_rect(&rDst));
if (!IsRectEmpty(&rDst))
{
/* copy bits */
RECT rDst_lp = rDst, rSrc_lp = rDst;
OffsetRect( &rSrc_lp, offset.left - offset.right, offset.top - offset.bottom );
DPtoLP(hdc, (LPPOINT)&rDst_lp, 2);
DPtoLP(hdc, (LPPOINT)&rSrc_lp, 2);
if (!BitBlt( hdc, rDst_lp.left, rDst_lp.top,
rDst_lp.right - rDst_lp.left, rDst_lp.bottom - rDst_lp.top,
hdc, rSrc_lp.left, rSrc_lp.top, SRCCOPY))
return FALSE;
}
/* compute update areas. This is the clipped source or'ed with the unclipped source translated minus the
clipped src translated (rDst) all clipped to rClip */
if (hrgnUpdate || lprcUpdate)
{
HRGN hrgn = hrgnUpdate, hrgn2;
if (hrgn) SetRectRgn( hrgn, rClipped_src.left, rClipped_src.top, rClipped_src.right, rClipped_src.bottom );
else hrgn = CreateRectRgn( rClipped_src.left, rClipped_src.top, rClipped_src.right, rClipped_src.bottom );
hrgn2 = CreateRectRgnIndirect( &rSrc );
OffsetRgn(hrgn2, offset.right - offset.left, offset.bottom - offset.top );
CombineRgn(hrgn, hrgn, hrgn2, RGN_OR);
SetRectRgn( hrgn2, rDst.left, rDst.top, rDst.right, rDst.bottom );
CombineRgn( hrgn, hrgn, hrgn2, RGN_DIFF );
SetRectRgn( hrgn2, rClip.left, rClip.top, rClip.right, rClip.bottom );
CombineRgn( hrgn, hrgn, hrgn2, RGN_AND );
if( lprcUpdate )
{
GetRgnBox( hrgn, lprcUpdate );
/* Put the lprcUpdate in logical coordinate */
DPtoLP( hdc, (LPPOINT)lprcUpdate, 2 );
TRACE("returning lprcUpdate %s\n", wine_dbgstr_rect(lprcUpdate));
}
if (!hrgnUpdate) DeleteObject( hrgn );
DeleteObject( hrgn2 );
}
return TRUE;
}